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Server is already running in Rails
...es, proper deletion doesn't happen so you have to remove the file manually
New Solutions
when you run rails s
=> Booting WEBrick
=> Rails 4.0.4 application starting in development on http://0.0.0.0:3000
=> Run rails server -h for more startup options
=> Ctrl-C to shutdown server
A...
Can Mockito capture arguments of a method called multiple times?
... should be noted that in case you do something like this: Person person = new Person("John"); doSomething(person); person.setName("Jane"); doSomething(person); the captured argument will be the same twice (because actually it is the same person object), so capturedPeople.get(0).getName() == capture...
What part of Hindley-Milner do you not understand?
... to e₁! Hopefully this isn't a surprise :).
The next rule has some more new syntax. Particularly, Γ, x : τ just means the context made up of Γ and the judgement x : τ. So, if we know that the variable x has a type of τ and the expression e has a type τ', we also know the type of a function ...
Is there a REAL performance difference between INT and VARCHAR primary keys?
...e name? How would client app handle it if there were two rows with 'NJ', 'New Jersey'? Natural Keys ensure data consistency!
– Charles Bretana
Apr 27 '17 at 21:45
...
AngularJS validation with no enclosing
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f22098584%2fangularjs-input-validation-with-no-enclosing-form%23new-answer', 'question_page');
}
);
...
Using backticks around field names
...ing fine until we applied an upgrade to our database engine, which added a new keyword. Suddenly everything that queried a particular table broke.
– Miquella
Nov 19 '08 at 17:33
...
Download a file with Android, and showing the progress in a ProgressDialog
...essDialog;
// instantiate it within the onCreate method
mProgressDialog = new ProgressDialog(YourActivity.this);
mProgressDialog.setMessage("A message");
mProgressDialog.setIndeterminate(true);
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
mProgressDialog.setCancelable(true);
...
Request is not available in this context
...ppStart
{
static bool _init = false;
private static Object _lock = new Object();
/// <summary>
/// Does nothing after first request
/// </summary>
/// <param name="context"></param>
public static void Start(HttpContext context)
{
if (_...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
... uri;
private VrPanoramaView panorama;
private Options options = new Options();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
panorama = (VrPanora...
How can I set the focus (and display the keyboard) on my EditText programmatically
...
final EditText tb = new EditText(this);
tb.requestFocus();
tb.postDelayed(new Runnable() {
@Override
public void run() {
InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);...